Very worthwhile mod for 08-10 450/510 owners. The rear is much more "free" especially under acceleration over HSC hits like sharp rocks and loose sharp rocks. The rear is smoother and more controlled. Note: only do this only if the bike is being ridden hard, if its just a trail cruiser dont bother. I recommend this mod for racers and hardcore trail riders. It kind of duplicates the (ATK) or the new coaxial type system by lessening the pro squat character of the rear under acceleration, and after doing all of our usual rock climbs the difference was minimal under that condition. I was worried that the excellent Husky steep rock climbing ability might suffer, but it worked just fine. Also LTR suspension for my Zokes/Sachs combo still rocks!!
This part here: http://www.ziptyracing.com/products/product_detail.aspx?id=MTgyNg== Thanks for sharing your experience, any more explanation of the benefits would be great- is it made from TMdesigns type materials or OEM type? Curious how it effects handling and squatting in corners. I might appreciate that aspect as mine tends to stand up a little in corners. But I need to get smoother with the throttle too. I saw that, I figured it was designed by or with TMDesigns. I partially considered buying one since I have gone through a slider. Figured since this one is wearing fine and I have a spare- I'd hold off for more info... I did get the TM.Designs lower chain guide from Zipty- I found my old one was bent and the rubber block was about worn through. I used for the first time yesterday- VERY NICE, less rolling resistance, I thought it was quieter, and now I don't have to worry about it on rocks.
I think they work with TM designs (not for sure) Also just like TM products (hard "plastic" material) at slower on off throttle chain slap speeds it does make the slap/rattle noise, but when on the gas and going hard it is unnoticable.. rode hard again yesterday (more practice) the rear just feels more plush and under control. (my machine has the BRP chain guide another great choice) About installation, it takes a little bit of garage handiwork to mount, no more than 10 minutes and I used different hardware. also funny thing that the website says it increases squat, I thought by its nature in decreases squat????? All i know is that the machine really feels better in the rear and I only did one minor clicker adjustment 2 clicks out of HSCD for riding over sharp rocks.
I'd like to try one on my TC250 and see how it acts in woods racing. I've always felt like lessening chain torque would free up the rear end and let it work better, but taking all the torque away seems to be too much. Maybe this is a good compromise?
I saw the team guys running different linkage arms at the start of the 09 season (hare and Hound/Worcs). But the latest set ups are only running this mod , so as far as the ZipTy riders go this is the mechanical mod they are running at the moment. That and a super nice Ohlins shock. Anybody have notice from the GNCC riders bikes??? Motorhead, we were running through our version* of "woods" riding and the thing just really works nice in the curvy stuff as well as whooped out S/T. *practice trails with endless esses, 90deg and hairpin single tire bermed corners around manzanita bushes, up , over and around rocks.
Interesting .. That is probably changing the leverage angle (and forces) being applied through the chain between the 2 sprockets ... does not look like a lot but maybe it can make a difference ... I've been reading alot on how the FS on the swing arm changes the way the suspension operates ... no engineer here ... PS -- Aren't we all hardcore trail riders ?
I picked one of these up today. It is made of the same material as the TM designworks chain guide (delrin I believe). I have yet to ride with it installed but from what I've learned it's supposed to give the bike a more "japanese" feel in rear and also help with the bike's tendency to standup mid corner and climb out of ruts. Ill report back after a few hard miles.
Today I was able to ride the bike for the first time since installing the high back slider. I have to say its subtle, but a definite improvement. The bike feels smoother over small sharp bumps, as well as a feeling more controlled and planted in turns. It might just be me, but I think the front end lifts with less effort now too.
some of the subtle differences you found may simply be that (if you adjusted the chain tension after your instal) the axle is now closer to the front of the bike making the swing arm effectively shorter also. I would think that on acceleration with this set up it would cause the rear to swat more because the chain would have more leverage to push down on the top of the swingarm- that's my guess at the theory behind the part.
http://www.ultimatemotorcycling.com/2011-husqvarna-tc-449-preview the new series 449/511 family coaxial set up, the same basic idea to keep the chain torque under accel and decel from acting upon the suspension. good one with the ATK example I had one of those 406s with ATrak assy another Horst Leitner genius invention. Like mentioned above its subtle with the high back but when riding hard (not trail cruising) it definitly has a better feel and is more controlled. it gives a more planted feeling at the same time a more "happy" movement under HSCD regimes (under hard accel over sharp rocky stuff)
